Hi all, I have a rectilinear dataset of 4096x4096x160 floats with constant spacing in X and Y, but varying spacing in Z. I've put the data in a single HDF5 file (for now) with the following layout:
HDF5 "ql200.hdf" { GROUP "/" { DATASET "ql" { DATATYPE H5T_IEEE_F32LE DATASPACE SIMPLE { ( 4096, 4096, 160 ) / ( 4096, 4096, 160 ) } } DATASET "x" { DATATYPE H5T_IEEE_F32LE DATASPACE SIMPLE { ( 4096 ) / ( 4096 ) } } DATASET "y" { DATATYPE H5T_IEEE_F32LE DATASPACE SIMPLE { ( 4096 ) / ( 4096 ) } } DATASET "zf" { DATATYPE H5T_IEEE_F32LE DATASPACE SIMPLE { ( 160 ) / ( 160 ) } } } } The point coordinates per axis are in the X, Y and Z(f) datasets. I use the following Xdmf file to read this set into PV 3.14.1: <?xml version="1.0" ?> <!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []> <Xdmf> <Domain> <Grid Name="TheGrid" GridType="Uniform"> <Topology TopologyType="3DRectMesh" Dimensions="4096 4096 160"/> <Geometry GeometryType="VXVYVZ"> <DataItem Dimensions="4096" NumberType="Float" Precision="4" Format="HDF">ql200.hdf:/x</DataItem> <DataItem Dimensions="4096" NumberType="Float" Precision="4" Format="HDF">ql200.hdf:/y</DataItem> <DataItem Dimensions="160" NumberType="Float" Precision="4" Format="HDF">ql200.hdf:/zf</DataItem> </Geometry> <Attribute Name="ql" AttributeType="Scalar" Center="Node"> <DataItem DataType="Float" Precision="4" Dimensions="4096 4096 160" Format="HDF">ql200.hdf:/ql</DataItem> </Attribute> </Grid> </Domain> </Xdmf> This doesn't work unfortunately, as PV turns it into a grid of 160x4096x4096 (and no data is visible at all, even though the number of cells and points seems to be correct). I don't see where the reordering of axes comes from. Looking at Utilities/Xdmf2/libsrc/XdmfGeometry.cxx I think I got the Geometry stuff correct. Does anybody see what is wrong? Secondly, for rendering this set in parallel I was wondering if PV can automatically read in subsets of the data from the single HDF5 file per node (i.e. hyperslab reading), or that a manual split of the data is needed anyway? Thanks in advance for any help, Paul _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview